Merge pull request #812 from nathanielmanistaatgoogle/python-version-number

Set Python version number to 0.4.0.

src/python/src/setup.py

@@ -81,6 +81,6 @@ _PACKAGE_DIRECTORIES = {
 }
 
 _core.setup(
-    name='grpc-2015', version='0.0.1',
+    name='grpc-2015', version='0.4.0',
     ext_modules=[_EXTENSION_MODULE], packages=_PACKAGES,
     package_dir=_PACKAGE_DIRECTORIES)